The purpose of this document is to define specific configuration profiles of the Internet Protocol Security (IPsec) protocol suite suitable for use within a utility control system. The primary goal in developing this standard is to promote interoperability between products developed by different vendors. It focuses on those configuration parameters needed to support the establishment and sustained operation of an IPsec Virtual Private Network (VPN) tunnel between two devices which have implemented IPsec conforming to this standard. A secondary goal of this standard is to minimize configuration errors involving IPsec implementations within utility control systems.This standard specifies requirements for interoperability of devices utilized within utility control systems which implement the Internet Protocol Security (IPsec) protocol suite.